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Leaf litter degradation in highly turbid transitional waters: preliminary results from litter-bag experiments in the Gironde Estuary

Fuentes-Cid, Ana and Chauvet, Eric and Etcheber, Henri and De-Oliveira, Eric and Sottolichio, Aldo and Schmidt, Sabine Leaf litter degradation in highly turbid transitional waters: preliminary results from litter-bag experiments in the Gironde Estuary. (2015) Geodinamica Acta, 27 (1). 60-66. ISSN 0985-3111

(Document in English)

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Official URL: http://dx.doi.org/10.1080/09853111.2013.877233


The rates of decomposition of oak (Quercus robur) leaves have been examined using litter bags in a very high turbidity macrotidal estuary, the Gironde Estuary (S.W. France). The first experiments show a marked decrease in the decomposition rate of oak leaves at the water-sediment interface (mud-contact: anoxic conditions, reduced physical fragmentation) in comparison to the water column. The results point out the impact of hydrodynamic conditions on leaf litter degradation in such fluvio-estuarine systems. Regarding the aquatic-terrestrial linkage, our observations suggest direct changes in leaf decomposition kinetics and then, a potential delay on the recycling and transport processes of coarse particulate organic matter, especially in a context of modification of the natural water flow, due to global and land use changes.

Item Type:Article
Additional Information:Thanks to Taylor & Francis editor. The definitive version is available at http://www.tandfonline.com The original PDF of the article can be found at Taylor & Francis website : http://www.tandfonline.com/doi/abs/10.1080/09853111.2013.877233#.Vd1ufEaYu7Q
HAL Id:hal-01187415
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Other partners > EDF (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Other partners > Ecole Pratique des Hautes Etudes - EPHE (FRANCE)
Other partners > Université de Bordeaux (FRANCE)
Laboratory name:
EDF R&D - MAGEST consortium - AEAG (Agence de l’Eau Adour-Garonne) - SMIDDEST (Syndicat MIxte pour le Developpement Durable de l’ESTuaire de la Gironde) - SMEAG (Syndicat Mixte d’Etudes et d’Aménagement de la Garonne) - EPIDOR (Etablissement Public Interdépartemental de la Dordogne) - EDF - GPMB (Grand Port Maritime de Bordeaux) - CUB (Communauté Urbaine de Bordeaux)
Deposited On:26 Aug 2015 11:26

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